sudo ethtool -s eth0 autoneg off
I have some device on s905x3 with rt8211 and ethernet not worked. So i take meson-sm1-sei610-ethfix.dtb from previos post.
Use AML+RK+AW linux image. But still no ethernet. Only tihs code help, it took 2 days ))
Thanks, to balbes150 ! good work.